V2EX blackbody radiation

Blackbody Radiation

释义 Definition

黑体辐射:理想化“黑体”(能完全吸收各种波长电磁辐射的物体)在热平衡状态下因温度而发出的电磁辐射,其光谱分布只取决于温度,与材料种类无关(理想情况下)。

发音 Pronunciation (IPA)

/blkbdi redien/

例句 Examples

Blackbody radiation depends only on temperature.
黑体辐射只取决于温度。

Planck explained blackbody radiation by proposing that energy is emitted in discrete quanta.
普朗克通过提出能量以离散“量子”形式发射来解释黑体辐射。

词源 Etymology

blackbodyblack(黑的)+ body(物体)构成:这里的“黑”指理想黑体完全吸收入射辐射、不反射而显“黑”。
radiation 源自拉丁语 radiatio(“光线的发散/辐射”),与 radius(光线、辐条)同源。合起来表示“黑体所发出的辐射”,在物理学中与热辐射、量子理论的建立密切相关。

相关词 Related Words

文学与著作 Literary Works

  • Max Planck, “On the Law of Distribution of Energy in the Normal Spectrum” (1901):提出普朗克定律,解决黑体辐射的经典难题。
  • Albert Einstein, “On a Heuristic Viewpoint Concerning the Production and Transformation of Light” (1905):在讨论光量子思想时延续了黑体辐射相关的能量量子化背景。
  • Richard P. Feynman, The Feynman Lectures on Physics:以教学方式讲解热辐射与黑体谱,连接经典统计与量子观点。
  • Charles Kittel & Herbert Kroemer, Thermal Physics:在热物理框架中系统讨论黑体辐射与玻尔兹曼因子、谱分布等概念。
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